\begin{tabular}{l*{12}{D{.}{.}{-1}}}
                &\multicolumn{3}{c}{Ageism Explicit}                     &\multicolumn{3}{c}{Ageism Thermometer}                  &\multicolumn{3}{c}{Ageism Index}                        &\multicolumn{3}{c}{Ageism IAT Score}                    \\\cmidrule(lr){2-4}\cmidrule(lr){5-7}\cmidrule(lr){8-10}\cmidrule(lr){11-13}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         &\multicolumn{1}{c}{(9)}         &\multicolumn{1}{c}{(10)}         &\multicolumn{1}{c}{(11)}         &\multicolumn{1}{c}{(12)}         \\
\midrule
Generational Grievances Index&    0.289\sym{***}&                  &    0.265\sym{***}&    0.232\sym{***}&                  &    0.222\sym{***}&    0.150\sym{***}&                  &    0.085\sym{***}&    0.020         &                  &    0.029\sym{**} \\
                &  (0.026)         &                  &  (0.026)         &  (0.027)         &                  &  (0.028)         &  (0.026)         &                  &  (0.024)         &  (0.013)         &                  &  (0.014)         \\
\addlinespace
Personal Grievances Index&                  &    0.203\sym{***}&    0.159\sym{***}&                  &    0.102\sym{***}&    0.066\sym{**} &                  &    0.449\sym{***}&    0.435\sym{***}&                  &   -0.033\sym{**} &   -0.037\sym{***}\\
                &                  &  (0.027)         &  (0.027)         &                  &  (0.029)         &  (0.029)         &                  &  (0.026)         &  (0.026)         &                  &  (0.013)         &  (0.014)         \\
\midrule
Observations    &     2070         &     2070         &     2070         &     2087         &     2087         &     2087         &     2086         &     2086         &     2086         &     1504         &     1499         &     1499         \\
Adjusted \(R^{2}\)&    0.063         &    0.028         &    0.080         &    0.038         &    0.006         &    0.041         &    0.017         &    0.147         &    0.152         &    0.001         &    0.003         &    0.005         \\
\end{tabular}
